Bomb releasing rack



l. MARKEY BOMB RELEASING RACK Marh 14, 1944.

Filed May 21. 1942 2 Sheets-Sheet 1 2 Sheets-Sheet 2 NN 1mm mm R .Y wm111 L1 mn om m n m @E 11 .vdi 1 m M 1 V M IHHHI m 1 mm Nw I .wm. om /1\\m w Nm w S f Nw f/,1 m ,1 1 N mm. Y 1 1 11 B Mw hm 1 1 vm om 1 :1&1 G Gm N m @E AI1 h N mw mw S 111111111111wnuHWMMMM/WMWHwmmmwmmuuuwmmwum 1 11|/ 1 11111 Wm1l|\ OYl/J/l /l\\ O mm 1 0 w .v lvw c l1 |111/ 1 F. L Nv OO wv N m. mm ow Nm S m 1 1m ,1% @1 ,V 1 n N1 O, L .Mw XV 1 1| I I 11. 111 1 111 1 1 nm 10%. om G mm. m

ATTORNLY Patented Mar. 14, 1944 UNE'E'D STATES PATENT OFICE BOR/mRELEASING RACK Roscoe I. Markey, East Orange, N. J., assigner to PollakManufacturing Company, Arlington,

N. J., a corporation of New Jersey Application May 21, 1942, Serial No.443,906

Y(Cl. Sil-1.5)

7 Claims.

The invention relates to bomb releasing racks, particularly adapted foruse with aerial bombs. The principal object of the present invention isto provide a simple Vdevice which is rugged in construction and foolproof in operation for releasing the bomb.

Another object is to anism for a bomb rack electrically or manually. YAnother important object is to provide an arrangement of parts in whicha minimum amount of energy is exercised to operate the releasingmechanism for a substantially heavy bomb. Thus the operating parts, bothelectrical and manual, may be quite light in weight and it is a wellknown fact that any saving in weight is an important feature in thisfield. Other objects and advantages will become apparent as thisspecification proceeds. Referring to the drawings forming a part thereofand in which a preferred form of the invention is illustrated:

Fig. 1 is a side elevation of the complete bomb rack; Fig. 2 is afragmentary detail elevational view with one of the side plates removedand the parts in the locked position;

Fig. 3 is a View similar to parts in the released position;

Fig. 4 is a fragmentary detail sectional through the trigger member ofthe manually controlled operating means; and

Fig. 5 is a crosss-sectional view taken on the line 5-5 of Fig. 3.

Referring again to the drawings the framework or supporting structure ofthe shackle comprises two spaced plates I-l resistance welded orotherwise secured to a channel member Il. A bomb supporting hook I2 ismounted between the two side plates and pivoted therein at I3. A ring orother suitable member indicated at I4 in Figs. 1 and 2 carries the bomb(not shown). Shocks I5 are provided adjacent either end of the rack toposition the bomb and prevent it from swinging.

Releasable locking means for the hook is generally indicated by thereference numeral 20. Means indicated at 2l are provided for droppingthe bomb armed or unarmed but as this means forms the subject matter ofanother application no further description of it is necessary.

- The releasable locking means may be operated electrically or manually.Naturally the automatic electrically operated means is preferred butthere is always the possibility of something provide a releasingmechwhich may be operated Fig. 2 showing the going wrong electricallyand it is therefore considered important to provide a manually operatedmeans which performs the same function as the electrically operatedmeans and for the sake of simplicity utilizes the mechanical parts ofthe electrically operated means. The operation of the electricallycontrolled releasable locking means will now be described.

Fig. 2 shows the releasable locking means in its locked position itbeing understood there is a bomb suspended in the rack, and Fig. 3illustrates the locking means in its released position, after beingelectrically operated, to permit of the bomb being dropped. The manualand electrical parts of the releasable locking means are mounted as aunit to permit of their ready removal from or assembly with the shackle.For this purpose a channel member 22 is secured to the side plates l0 byscrews, bolts or pins 23 and 24. 'Ihe manual operating means and theelectrical parts are mounted on the channel member as will behereinafter apparent. Thus should any of this mechanism be damaged orget out of order the entire unit may be quickly removed and a new onesubstituted without disassembling the rack.

A solenoid 38 is mounted on a plate 3| secured to one end of the channelmember 22. A headed pin 32 formed as part of the solenoid core engagesan opening 33 in a lever 34 which is pivoted at 35 in the sides of thechannel member 22. A spring 36 urges the pivoted lever 34 away from thesolenoid or in a direction of what might be termed against the pull ofthe solenoid.

The upper end of the pivoted lever 34 has a notch 31 and this notchengages the end of a long arm 40 of a bell crank lever 4l pivoted at 42in the side plates l. The short arm 43 has a' hook 44 on its lower endwhich engages a toe 45 on the bomb supporting hook I 2 when the partsare in the locked position of Fig. 2. 'A spring 46 normally urges theshort arm 43 away from the bomb supporting hook l2 and the long armdownwardly and away from the notch 3l in the pivoted lever 34 when theparts are in the released position of Fig. 3. A stop 46 extendingbetween the side plates It limits the downward movement of the arm 40and the upward movement of one end of the bomb supporting hook I2 in thereleased position. A nose 41 on the hook l2 which may contact the longarm 40 limits the upward movement of the other end of the bombsupporting hook.

The manually operated releasing means comprises a trigger 5l) which ispivoted at 5I in ears The loop 59'has an operating connection 56' by.

virtue of which it may be pulled at any angle within 180.

The pull cable passes under a stud Se andit is thought to be apparent anupward pullon the loop 59 will cause one endofthehtri'ggerto be raised.The spring 55 acts as an over-.travel spring to eliminate the need forexact adjustment on the operating cable .and vasabuier spring to preventundue strain on the parts.

The ends of the stud Si) extend beyond the sides 4Vof the triggermemberyand theends ci a spring -Gl are loopedaround the extensions of the`Vstud andithe other end of thespring engages the channel member il. Thisspring functions to;maintainzthe .trigger in its locked position.

.The end of `the trigger adjacentthestud 55 has.: an extension' 52. Asshown inv Fig.v 2 inLthe locked position this extension engages a camsurface B3 'ormedin the top of ,the opening 33. Anupvvardpull onthetrigger will cause the. eX- tension 62 to .camthe.pivoted.-lever134tothe release position of` Fig.'8, the samey asirtiie.solenoid i3d Vwere energized. "The end of the `long arm .48 of.the'beil;crankleverwill be disengaged fromV the nctchfi, the hook ifi onthe short. arm 43 vwill .pass from vunder the noseV 45 von the bombsupporting leverland the bomb vwill drop.

'Switches and 65 are carried bythe channel member 22, The operation ofthe switch 65 is controlled by a contact'ngerl 'carried by the pivotedlever 3i. `In operationwhen the rack-is loaded thel switch-pin is notin-contact with the finger S61. When the solenoid is energized or thetrigger Eil-.pulled upwardlythe contact'nger 61 and-pivoted lever 34.move away 'from the switch pin but after the releasing mechanism hasbeen tripped-and the current cut to the solenoid or the trigger allowedto Idrop theJ spring 3S moves the'lever'l andnger '-61 to opferate'ftheswitch-and direct the electrical charge to'the following station.

vThe-switch 65 is anormally closed `switch and controls the tell-talelight or asignar inf the bombardiers-station. In thelocked-positionofFi-g. 2 afnose' 584 on the bomb supporting-hooki2'engages afspringi-.GQ which'maintains the switch pin in itsclosedwposition. When the bomb vis dropped the noset' moves away fromthe spring 69, the switch 'pin is allowed to move outwardly, the circuitis broken and the light designating this` particular bomb rack goesout,thus informing the bombardier the Ybomb has been dropped.

r'lhe operating parts of the'releasing mechanism are autoinaticallysetwhen anewbornb is positioned in ,the rack. .The ring or loop. lllengagesthe hook l2 in its vreleased-position -and the upward` orforwardforceapplied to the lower edge of `the hook will cause the nose 41 to contactthelcng arm-4? of the bell crank lever-and automatically throw all-.cithe internal -latching mechanism to the locked position.

Changes in details of `construction and yarrangement of parts; suchaswould 'occur to .one skilled in theartere yto be considered-as :com-

...of one of its arms engaging atztheside of the arm ,urged by theWeight of the bomb, and said arm L being .positionedat substantiallyright angles to said .pivoted lever,Y` and .core oigsaid solenoid sovthat its movement is cona bell crank the end the free end of saidpivoted lever, said pivoted lever being pivoted toward which it is beingtrolled by said solenoid, and

the end of the other arm engaging said toe on said bomb supporting hooklto maintain said hook in a locked position to prevent the bomb frombeing released until the solenoid is energized.

T2. `A bomb rack having in combination, a sup- 7portingA frame, a bombsupporting `-`hook. pivoted insaid frame, atoeformed on lsaidbombsupporting hook, v-a solenoid mounted in said frame, a'pivoted leveroperatively connected -with'the core of said solenoid so that its'movement is" controlled by said solenoid Vwhen l thel partsl -are-electrically operated, a -bell crank the vvend of oneof its armsengaging the free end voi'said pivcted leverfsaid -pivotedlever beingpivcted at the side of the armtowardwhich it isbeing urgedby the weightAofV the bomb, and-saidarm being positioned atsubstantiallylright anglesto'sadfpivoted lever, and the yend 'of the'otherH arm engaging said toelon-/said'bomb supportinghook to maintain saidhook ina 'locked' positionto` prevent the bomb frombeing releasedfuntil thesolenoid is energized;anda manuallybperated triggerfon moving said-pivoted lever the' same asif thesolenoid'were energized.

43. AAbomb vrack having incombination, a supporting frame, a bombsupporting hook Apivoted in -saidframa a'toe 'formedfon said bomblsupporting hook, a solenoid mounted in said. frame, a "pivotedleveroperatively connected with the core of said solenoid sothatvitslmovementis controlled by said solenoidwhen'fthetparts.arevelectrically operated, a bell crankl pivotedin'saidsupporting frame,.said bell crankhaving. allong `arm and ashort'arm,'thellong armengaging the free end of said pivoted' lever,saidpivotedi' lever being pivoted at thevside of said longarm towardwhich' it is'being urgedby Vthe ,weight of lthe bomb,.and said long armbeing A'positioned.atsubstantially right anglesto said` pivoted leven.and the 'short arm havingahooked .portionondts free end to engage saidtoennsaidlbombsupporting hook 'to maintain saidhooklinlalockedpositionto Aprevent the bomb from being released until the solenoidisenergized, and amanually operated trigger for moving v,sa-id ,pivotedlever the same as Yii 4ther-,solenoid were energized.

.4. A rbomb rack having in.combination, a-supporting frame, a bombsupportingI hook pivoted said frame,.a toe formed.onsaidibomblsupportinghook, asolenoid mounted -in-said1 frame, a pivoted -lever operatively:connected 1 with the core-of said solenoid .so ,that :its4movementdsrcontrolled .by said i solenoid when the,,partsareelectrica-lly operated,:a bellcrank leverrhavingaa long armvand a-;short ..arm,1 the: end .offts clongfarm engaging thefree :end ofsaid: :pivoted '-lever,said pivoted .lever :being pivoted at the side..of P said long;.arm.,towardzwhich. itis being .urged by the weight ofthe bomb, and said long arm being positioned at substantially rightangles to said pivoted lever, and the end of the short arm engaging saidtoe on said bomb supporting hook so as to maintain said hook in a lockedposition to prevent the bomb from being released until the solenoid isenergized, manually operated means for moving said pivoted lever thesame as if the solenoid were energized, and a nose formed on said bombsupporting hook adjacent said toe to engage the under side of the longarm of said bell crank lever so as to automatically move the parts fromthe release position to the locked position upon positioning a freshbomb in the rack.

5. A bomb rack having in combination, a supporting frame comprising apair of plates spaced apart from each other, a bomb supporting hookpivoted between said plates, a quick detachable auxiliary frame mountedbetween said plates, a

solenoid mounted in said auxiliary frame, a

pivoted lever mounted in said auxiliary frame, said pivoted lever beingoperatively connected with the core of said solenoid so that itsmovement is controlled by said solenoid when the parts are electricallyoperated, a bell crank pivoted between said plates, said bell crankhaving a long arm and a short arm, said pivoted lever being pivoted atthe side of said long arm toward which it is being urged by the weightof the bomb, said long arm engaging the free end of said pivoted leverand being positioned at substantially right angles thereto, said shortarm having a hooked portion on its free end to engage a toe on said bombsupporting hook to maintain said hook in a locked position to preventthe bomb from being released until the solenoid is energized, and amanually operated trigger for moving said pivoted lever the same as ifthe solenoid were energized, said trigger being mounted in said auX-iliary frame.

6. A bomb rack having in combination, a supporting frame, a bombsupporting hook pivoted in said frame, a solenoid mounted in said frame,a pivoted lever operatively connected with the core of said solenoid sothat its movement is controlled by said solenoid when the parts areelectrically operated, a notch in the free end of said pivoted lever, anopening in the intermediate portion of said pivoted lever, the core ofsaid solenoid cooperating with said opening, a bell crankA lever, theend of one of its arms engaging the notch in said pivoted lever and theend of the other arm engaging said bomb supporting hook to maintain saidhook in a locked position to prevent the bomb from being released untilthe solenoid is energized, a trigger pivoted in said supporting frame,and anv extension on said trigger, said extension being adapted toengage said opening in said pivoted lever so that manual operation ofsaid trigger will move said pivoted lever the same as if the solenoidwere energized.

7. A bomb rack having in combination, a supporting frame, a bombsupporting hook pivoted in said frame, a toe formed on said bombsupporting hook, a solenoid mounted in said frame, a pivoted leveroperatively connected with the core of Said solenoid so that itsmovement is controlled by said solenoid when the parts are electricallyoperated, a bell crank lever, the end of one of its arms engaging thefree end of said pivoted lever and the end of the other arm engagingsaid toe on said bomb-supporting hook to maintain said hook in a lockedposition to prevent the bomb from being released until the solenoid isenergized, a trigger pivoted in said supporting frame, a pull cableattached to said trigger, a buffer spring interposed between said pullcable and said trigger, and an extension on said trigger, said extensionbeing adapted to engage said pivoted lever so that manual operation ofsaid pull cable will cause said extension to move said pivoted lever thesame as if the solenoid were energized.

ROSCOE I. MARKEY.

